492 
GENERAL INDEX. 
Page 
teal, cinnamon 248 
green-winged _ L— »Gi£! 248 
tergisus, Hydon 253 
tern, black 34 
terrarium, construction of 234 
Tetraedron caudatum 461 
pentaedricum —ik 461 
sp 461 
tetras, Eediastrum.-SsPo^S 461 
Tetrastrum staurogeniseforme 461 
thalassinum, Etheostoma 7 
Thermonectes . 235, 236, 243, 291 
basilaris 263,266,291-298 
adult, description and habits of 295 
distribution in Fairport (Iowa) fishponds 263, 266 
eggs 291 
larva, description and habits of 291,293,294 
pupa, description of 295 
pupation 294 
locomotion of 2 235 
ornaticollis 236, 245, 262-264, 266, 290, 292, 296-298, 330 
adult, description of 298 
distribution in Fairport (Iowa) fishponds 263, 266 
296 
larva, description and habits of 
pupa, descriptionof 298 
water as enemy of 245 
pupation 298 
tiger beetles, as food for frogs 248 
toads, as beetle eaters 248 
toothed herring 253,254 
top minnow 4 
common 253 
Menona 253,254 
viviparous 257 
top-water minnow 4 
Toxieities of coal-tar creosote, creosote distillates, and 
individual constituents for the marine wood borer, 
Limnoria lignorum 221-230 
Trachelmonas .... 441,461 
schauinslandii 399, 402, 405 
triacanthus, Poronotus k-,-- 162 
triangularis, Hydrous 10-12, 
34, 35, 237, 238, 242, 245, 247, 249, 252, 263, 266, 332 
Triarthra longiseta 400, 405, 410 
Tribonema sp 461 
triopsis, Haliplus 237,263 
Tropisternus 243, 244, 249, 321, 332, 334 
fish as food of ; 249 
glaber A. 238, 246, 263, 266, 326-333 
adult 329 
cap attachment on egg case. . .... 333 
distribution in Fairport (Iowa) fishponds 263,266 
egg case, cap attachment on K 333 
eggs and egg case .! .. 326 
larva, mature 328 
larva, newly hatched, description of 328 
migration.. 238 
pupa, description of. i.j= 328 
> enemies of . . . . 246 
237, 245-247, 259, 265, 321-333 
adult, description and habits of 326 
turtles as enemies of. 247 
as food for bass |S§ 259 
cap attachment on egg case... 
egg case and eggs 
Page 
Tropisternus, lateralis, influence of environment on 265 
larva, habits of i - — 322 
mature 324 
newly hatched, description of 324 
migration... h —.I...-— 237 
pupa, description of 325 
enemies of... — 245,246 
pupation 325 
mixtUS 243, 263, 324, 327-333 
adult, description and habits of 332 
cap attachment on egg case 333 
distribution in Fairport (Iowa) fishponds 263 
egg case and eggs i..— 329 
larva, enemies of 243 
habits of 329 
mature 331 
newly hatched, description of 331 
nimbatus 238,321 
distribution according to size 238 
trout .. .......... 7, 150-169 
bastard 169,170 
black... 164^169 
brook .— . 254 
food of.... 255,256 
fresh-water. _. 7 
gray 150-164,169,170 
greenback 256 
rainbow 254, 256 
salmon 164-169 
sand 169,170 
sea 150-169 
shad... 150-164 
speckled 164-169 
spotted 164-169 
summer 150-164 
sun 150-164 
yellow-finned 150-164 
turtles 244,247 
as beetle eaters 244,247 
painted 244 
snapping... ....i-nk-c.: ihi'Hffl. 247 
Twin Lake, Lower, Idaho 89, 117, 128 
Upper 67, 72, 96, 121, 134 
tyrannus, Brevoortia ... 162, 163 
ulna v. capitata, Synedra 408 
Umbra limi i 4,254 
pigmse Lift#) 4 
Umbrina broussonnetii 198 
coroides ... . 145, 198 
uncinatus, Colurus.. — — - — — 409 
undata, Quadrula 446,463 
undulatus, Micropogon 143, 161, 179, 180, 199 
Strophitus .■ 144 
Unio (Symphynota) complanata 443 
Upper Priest Lake, Idaho: 
depth, temperature, and dissolved gases 121 
description — i. — 96 
plankton 96, 134 
Upper Twin Lake, Idaho: 
description 96 
fish 72 
plankton :. 96, 134 
thermal changes and gas conditions 67, 121 
urceolaris, Brachionus ... 400 
urns, Ictiobus —..--A---.-. .1.^... 253 
